ISSN:
1573-9171
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Summary 1. In the chlorination of tetraethylsilane, replacement of hydrogen by chlorine occurs predominantly in the C-H bonds of thea-methylene groups owing to their great electronization and to the screening of the positive charge of the silicon nucleus by its considerable electron envelope. 2. As the ethyl radicals of tetraethylsilane are successively replaced by chlorine atoms, there occurs increasing electronization of C-H bonds, both in methylene groups (to the greater extent) and in methyl groups; and the repelling action on the chlorine molecule also increases. As a result, in CH3CH2SiCl3 chlorination already occurs preferentially at theB-C-H bonds. 3. The phenomena of electronization and protonization of bonds are important factors in the determination of the chemical behavior of matter, but they must always be considered in their relation to other factors of chemical structure and to the conditions of reaction.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01177361
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